Follow the steps below to troubleshoot servo motor runaway alarms:
Verify that the correct motor code is configured.
Check for mismatched wiring between axes. Ensure the Axis 1 encoder cable and power cable are correctly connected to the Axis 1 port, with no cross-connection to the Axis 2 encoder port.
Inspect the electrical cabinet and motor power wiring for faults. Check the power cables for sheath damage, poor contact, and short circuits to ground.
Confirm the motor zero point calibration and encoder operation are normal.
Check for torque limit restrictions. The motor may fail to follow motion commands and run reversely due to gravity or external load if the torque is limited by internal drive parameters (No.06 / No.07) or bus controller parameter 6072.
